Deformed steel bar HPB400; HPB500
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 2000 m.t.
- Supply Capability:
- 30000 m.t./month
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Specifications of Deformed Steel Bar:
Standard | GB | HRB335, HRB400, HRB500 | |
UK | G460B, B500A, B500B,B500C | ||
USA | GR40, GR60 | ||
Diameter | 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm | ||
Length | 6M, 9M,12M or as required | ||
Place of origin | Hebei, China mainland | ||
Application | building,construction,road,bridge etc | ||
Brand name | DRAGON | ||
Theoretical weight and section area of each diameter as below for your information:
Diameter(mm) | Section area (mm²) | Mass(kg/m) |
6 | 28.27 | 0.222 |
8 | 50.27 | 0.395 |
10 | 78.54 | 0.617 |
12 | 113.1 | 0.888 |
14 | 153.9 | 1.21 |
16 | 201.1 | 1.58 |
18 | 254.5 | 2.00 |
20 | 314.2 | 2.47 |
22 | 380.1 | 2.98 |
25 | 490.9 | 3.85 |
28 | 615.8 | 4.83 |
32 | 804.2 | 6.31 |
36 | 1018 | 7.99 |
40 | 1257 | 9.87 |
50 | 1964 | 15.42 |
Usage and Applications of Deformed Steel Bar:
Deformed bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger..
Packaging & Delivery of Deformed Steel Bar:
Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.
Each bundle weight: 2-3MT, or as required
Payment term: TT or L/C
Delivery Detail: within 45 days after received advanced payment or LC.
Label: to be specified by customer, generally, each bundle has 1-2 labels
Trade terms: FOB, CFR, CIF
- Q: What is the effect of steel rebars on the thermal conductivity of concrete?
- The effect of steel rebars on the thermal conductivity of concrete is generally negligible. While steel has a higher thermal conductivity than concrete, the relatively low volume fraction of rebars in typical reinforced concrete structures does not significantly impact the overall thermal conductivity of the material.
- Q: Can steel rebars be used in composite construction systems?
- Indeed, steel rebars can be employed within composite construction systems. Composite construction denotes the merging of various materials, typically concrete and steel, to generate a sturdier and more effective structure. Steel rebars are frequently utilized as reinforcement in concrete structures, delivering supplementary strength and longevity. Within a composite construction system, steel rebars are integrated into the concrete, establishing a connection between the two materials. This amalgamation permits the utilization of concrete's compressive strength and steel's tensile strength, resulting in a remarkably efficient and resilient structure. The utilization of steel rebars in composite construction systems provides numerous advantages. Primarily, it bolsters the structural integrity of the construction by amplifying its load-bearing capacity and resistance to external forces such as earthquakes or heavy loads. Additionally, steel rebars assist in managing cracking and enhancing the overall durability of the structure. Moreover, steel rebars offer flexibility in design and construction. They can be easily molded and positioned in accordance with the specific requirements of the structure, enabling intricate and complex designs. Furthermore, steel rebars can be prefabricated off-site, streamlining the construction process and saving time. In conclusion, steel rebars are an essential element of composite construction systems. Their incorporation in conjunction with concrete offers numerous benefits, including heightened strength, durability, and flexibility.
- Q: What are the precautions to be taken while welding steel rebars?
- To ensure safe and effective welding of steel rebars, there are several precautions that should be taken: 1. It is important to work in a well-ventilated area or use exhaust systems to remove harmful fumes and gases generated during welding. This helps maintain a safe breathing environment. 2. Welders should always wear appropriate personal protective equipment (PPE) such as a welding helmet or face shield, safety glasses, welding gloves, flame-resistant clothing, and steel-toed boots. This protective gear minimizes the risk of burns, eye injuries, and other physical hazards. 3. Fire prevention is crucial. Before starting the welding process, ensure that the work area is free of flammable materials and have a fire extinguisher nearby. It is also advisable to have a fire watch person present to monitor for potential fire hazards. 4. Proper grounding is essential to prevent electrical shocks. Ensure that the welding machine is correctly grounded and the workpiece is connected to a reliable grounding point. 5. Clean the surface of the rebars before welding. Remove any oils, grease, dirt, or rust using a wire brush or grinder, as these contaminants can affect the weld's quality. 6. Employing the correct welding technique is crucial for strong and reliable welds. Follow recommended welding parameters, such as current, voltage, and electrode diameter, and maintain a steady hand and consistent travel speed to prevent weld defects. 7. It is important to have proper training and experience when working with steel rebars. Ensure the welder is skilled and knowledgeable in this area to minimize errors and meet required standards and specifications. By adhering to these precautions, welders can significantly reduce the risk of accidents, injuries, and subpar weld quality when working with steel rebars.
- Q: What is the weight of steel rebars per meter or foot?
- The weight of steel rebars per meter or foot can vary depending on the size and type of rebar being used. On average, a mild steel rebar typically weighs around 0.44 pounds per foot or 0.67 kilograms per meter. However, it is important to note that different rebar sizes and compositions can result in different weights.
- Q: What are the different types of steel rebars used in high-rise buildings?
- There are several types of steel rebars that are commonly used in high-rise buildings due to their strength and durability. These include: 1. Mild Steel Rebars: Also known as black bars, these are the most commonly used type of rebars in construction. They have a low carbon content and are easily weldable, making them ideal for reinforcing concrete structures. 2. High Strength Deformed (HSD) Steel Rebars: These rebars have a higher tensile strength than mild steel rebars. They are made by cold twisting or stretching the mild steel bars, resulting in a deformed pattern on the surface that provides better bonding with concrete. 3. Corrosion-Resistant Steel Rebars: In high-rise buildings located in coastal areas or regions with high humidity, corrosion-resistant steel rebars are used to prevent rust and deterioration. These rebars are coated with epoxy or galvanized to protect them from moisture and corrosive elements. 4. Carbon Steel Rebars: These rebars are made of carbon steel and have a higher carbon content than mild steel rebars. They offer excellent tensile strength and are often used in high-rise buildings where additional reinforcement is required. 5. Stainless Steel Rebars: Stainless steel rebars are highly resistant to corrosion and can withstand extreme weather conditions. They are commonly used in high-rise buildings that require long-term durability and protection against rust. 6. TMT (Thermo-Mechanically Treated) Steel Rebars: TMT rebars are manufactured by subjecting mild steel bars to a combination of heat treatment and mechanical deformation. This process imparts superior strength and ductility to the rebars, making them suitable for high-rise buildings where seismic resistance is crucial. Each type of steel rebar has its own specific properties and advantages, allowing engineers and construction professionals to choose the most appropriate type based on the requirements and specifications of the high-rise building project.
- Q: What are the guidelines for the proper anchoring of steel rebars in walls?
- The guidelines for proper anchoring of steel rebars in walls typically involve factors such as the rebar size, spacing, embedment depth, and the type of wall construction. It is important to follow building codes and structural engineering standards specific to your region. Generally, rebars should be adequately spaced and securely anchored into the surrounding concrete or masonry to ensure proper load transfer and structural integrity. Additionally, proper cover thickness should be maintained to protect rebars from corrosion and ensure long-term durability.
- Q: How many patterns are there in threaded steel?
- According to the shape of steel ribs, there are three kinds of patterns: herringbone spiral and crescent shaped patternSteel is commonly known as hot rolled ribbed bar, belonging to the small steel steel, mainly used for steel reinforced concrete structure frame. In use, some mechanical strength, bending deformation property and welding performance are required. The raw steel billet for the production of threaded steel is carbon structural steel or low alloy structural steel which is treated by calm melting, and the finished steel bar is delivered in hot rolling forming, normalizing or hot rolling state.
- Q: What is the purpose of stirrups in steel rebar reinforcement?
- The purpose of stirrups in steel rebar reinforcement is to provide lateral support and prevent the vertical bars from buckling or collapsing under load. They help distribute the load more evenly throughout the structure, enhancing its overall strength and durability. Stirrups also help to control the spacing and positioning of the vertical bars, ensuring proper reinforcement and preventing concrete cracking or failure.
- Q: Can steel rebars be used in historical bridge restoration?
- Yes, steel rebars can be used in historical bridge restoration. In many cases, historical bridges may have deteriorated or suffered damage over time, and steel rebars can provide strength and stability during the restoration process. Steel rebars are commonly used in reinforced concrete structures and can help reinforce the bridge's structural integrity. However, it is important to consider the aesthetics of the historical bridge and ensure that the use of steel rebars does not compromise its historical value or appearance. Preservation guidelines and consultations with historical experts can help determine the appropriate use of steel rebars in historical bridge restoration projects.
- Q: Can steel rebars be used in combination with other reinforcement materials?
- Combining steel rebars with other reinforcement materials is a common practice in construction projects. Steel rebars provide tensile strength and improve overall structural integrity in reinforced concrete structures. However, additional reinforcement materials may be needed in certain cases to meet design requirements or overcome unique construction challenges. For example, in areas with high seismic activity, it is important to prioritize flexibility and ductility. In these situations, steel rebars can be combined with materials like fiber-reinforced polymer (FRP) bars or carbon fiber-reinforced polymer (CFRP) strips. These materials offer increased strength and flexibility, enhancing the structure's ability to withstand seismic forces. Furthermore, when corrosion is a concern, steel rebars can be used alongside corrosion-resistant materials such as stainless steel rebars or epoxy-coated rebars. These materials form a protective barrier, preventing direct contact between the steel rebars and moisture or corrosive agents. Moreover, in specialized applications like precast concrete elements or composite structures, steel rebars can be used in conjunction with other reinforcement materials like prestressed tendons or structural fibers. This combination allows for load redistribution and ensures optimal structural performance. In conclusion, combining steel rebars with other reinforcement materials is an effective way to meet specific construction requirements, improve structural performance, and address challenges related to seismic activity, corrosion, or specialized applications.
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Deformed steel bar HPB400; HPB500
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 2000 m.t.
- Supply Capability:
- 30000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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